@media screen and (max-width:576px) {
    .ivu-layout-sider{
    }
}
@media screen and (min-width:577px) {
    
}
@media screen and (min-width:768px) {
    
}
@media screen and (min-width:1200px) {
    
}
@media screen and (min-width:1400px) {
    
}